Lubricator.



J. F. MGGANNA. LUBRIGATOR. APPLIoATIoN FILED 00T. 17. 1904. RBNBWEDAUG. 1o, 1910.

Patented Sept. 30, 1913.

2 SHEETS-SHEET l.

n Z @o 76 #im 75 J. P.' MQCANNA.

LUBRIoAToR. APPLIOATIQN FILED 001217, 1804. BBIIBWHD AUG. 10. 1910,

*Patented sepa 3o, 1913.

Q SHEETS-SHEET 2.

JOI-IN F. MCCANNA, OFv CHICAGO, LLINOS, ASSIGNR TC THE JOHN F. MGGANNA COMPANY, OF CHICAGG, LLINOIS, .A CORPORATION OF ILLINOIS.

LUBR'ICATOR.

Application tiled Getober 17, 190er, Serial No, 2285i? T 0 `all whom it may concern .t

Be it known that I, JOHN F. MLCNNA, a citizen otl the United States, residingI` at Gli/icago, in the county of Cook and State ot Illinois, hate invented certain newT and useful Improvements in Lnbri'eators7 of which the tollowing is a specification7 reference being' had therein to the accompanying drawing. v

rThis invention relates to improvements in that class ot lubricating apparatus designed to distribute oil from a common reservoir to one or more bearings or other working` parts located at different points(` such as the bearings and cqiilinders or" automobile motors, engines and otherv mechanisms.

The invention consists et' the combinations and arrangements ot' parts hereinafter particularly described and then pointed out in the appended claims.

ln the accompanying drawings, which illustrate one' embodiment ot the invention, Figure is a plan view ot the apparatus showing' thefreseriioir presided with tour setsot' pumps, the top and other parts being broken yawa \7 to facilitate illustration; Fig. 2 is a section on the line 2*@ ot' Fie'. l;

:l is a section on the line 3%?) ot Fig. l; Fig. l is a Vertical section of one ot the pump stocks, showing' the location and arrangement of the ports and ialves, and taken on the line lt--1i oi Fito: 5; Fie'. 5 is a section on the line of Fin: il: Fin'. (l is a src'tion on the line '---t ot' Figi'. 4, show@ inn thev main and :uixiliariy pumps and the plunlncr operating mechanism.

Iteterring to the drawings l@ indicates a suitable re:-:ervoir designed to contain the lubricant and which ma)v beef auf.' suitable size and shape. in the present 'instance l hare shown the same as cpmprising a recangjular box harinaa coter ll remoi'ably secnred on the tup of the resewoir by screws l2. The cover ll has a suitahleftilling opening closed by a screw erp 123 and `under the said opening is the nsuhl strainer 1.4. The reservoir l() is also provided in one ot its walls, which shall designatelthe trent wall, with a ,ejalLje glass; l5 .tor iadieatinjaj the height ot the oil in the rese t iir.

Located in the reservoir l0; is a pluralit;7

Spcecation of Letters Patent.

Patent ed Sept. 3Q, tt..

i. Renewed August 10. 1910. Serial No. 576,516.

and passes through an opening' in the bottom ot the reservoir l0, the stock beinesecured in position by means et a shoulder lo" on the stock within the reservoir and a lclamp nut t9 screwing' on the threaded end l? against the bottoni of the reservoir. The stoet: l@ is provided with a vertical passage 20, e tending a suitable height, and adapted to discharge through the threaded end 17 into a pipe (net shown) leading' tothe part to be lubricated. The primary pump comprises a barrel 21 carried by or mounted on the stock l@ in any suitable manner, and extending; horizontally toward the trent of the reserroir, and a reciprocatingl plunger The stock 16 is provided at its lower end with a vertieilnnlet passage 23 which opens into an enlarged chamber 24, the upper end of which chamber is closed by a screw plug' Located in the chamber 2t is a suitable valve. such as an upwardly opening' gravity valve 26, ad: pted to close the discharge end ot the passage i223. iaadfnrf;b trom the ehaniber Qi is a horizontal port 2T which communicates with the inner end ot the pump barrel 2l. port leads from the .same end ot the barrel 2l. as shown in Figs. Lland 5, and discharges into an upwa lly extcntlingv passage to the upper end ot which is connected a .'ertical tube 910. The upper end of the tube 30 is bentl down- \\'ardl`\f. as at 3l, so as to Adiscliarg'e the, oil passing" therethrough in drops into a pocket ff! formed in the upper end ot' the stock 1G.

treading' t'rom the bottoni` oix (he pocket 32 is a port i which enters a chamber ist in the stock lb a gravity ra .'e :E5 located in the enamber 34.

it screw plug 2h closes the top ot' the chamber EL. Le: ding' downwardly' trom the ehamber Si' is a tassa# 7 connnunieating l Ythe a1 |\'iliar Y pump,

l with the barre BS ot which barrel is located above the barrel 2l. fi plunger 3S) ieciprocates in tue barrel 38 and provided on its upper side with a and is ada )ted to be closed bv A groove 40, which is ot' such length as always to be under the discharge end ot' the passage 3T irrespective of the position of the plunger. A vertical port il in the plunger 39 communicates with the groove 40 and discharges into a channel lf2 passing through the inner end oi die plunger 89. A port 43 leads from the inner end ot the barrel into a chamber 44. in which located a gravity valve J1I) adapted to close the said port. A screw plug 2G closes the top oi the chan'iber del. A. duct l? extends from the chamber il and discharges into the passage 20. As "own, the capacity of the auxiliary pump is greater than that of the primary pump.

As shown in Figs. 2 and 4, the cover- 1l is provided with an aperture 48, through which the drip tube 30 extends. TheI stock 16 is provided at its upper end with an annular flange 49, the inner diameter of which is substantiallxY the same as that of the aperture 48. A collar 50, resting on the cover ll. is provided with an interniil .shloulder 5l having a depending annular flange 52 which extends through the aperture 48 and seats itself within the flange 4f) at the upper end of the stock 16. Surrounding the tube 8O and seated upon the shoulder 5l is 4a disk 53 of wire gauze, or other suitable material desinnedto strain the oil passing t'rom the primary pump by way ot' the tube 30 to the auxiliar)I pumpt A glass cylinder 54 incloses the tube 30 and its bent end 3l', and a cap 55 sealed upon the upper end of the cylinder 5l is provided with a screw entering a threaded aperture 57 in the bent 11pper end ll and serves to clamp the sight feed glass, ring 5() and tub@ C50 rigidly together and secures the upper end of the strek lo. The cap 55 hasl an air port 58.

A common 1n 'eliani.sni is employed for re eiprocating the plungei's ot' the primary and auxilialfvv pumps. and will now be explained.

Located in and extendinglongitudinally of tbe reservoir, as shown in Figs. l and 2, is an eccentric shaft 3f). (.)ne end ot' the .shaft 55) has a reduced tlirezuled end fl() and is provided with a bore lll; pillule (32, in threaded engagement with an opening in one end of the reservoir. enters the bore (3l. rl`ln'eaded upon the reduced end d() oi" the shaft 59 is a disk 63 provided at its periph ery with a recess (i4 in which is pivotally mounted a spring pressed pawl (33. Located at opposite sides er' the disk (33, and valso threaded upon the threaded end (3() ol the shaft 59, are plates (36. and l ,=cated between these plates on the disk (l5-5 is an annulus (37, the inner face of `which is provided with ratchet teeth 68 adapted to coperate with the pawl (i5, while its outer t'ace is in the form of a worm wheel (39. The opposite end of the shaft 59 is also provided with a bore into which extends a stud TO suitably journaled in the end of the reservoir and passing through a stalling box 71. A set screw 72 secures the shaftto the stud 70. The outer end of the stud 7l is adapted to worm wheel 69 is engaged and driven by a .vorm 74, on a shaft '75, one end of which is suitably journaled in the front Wall of the reservoir 10 While the other end passes. through a suitable stuffing box 76 in the opposite Wall and is 'provided with a' drive wheel, such as the belt Wheel 77, togwhich 'able rotating part of the engine or other machine which is to belubricated.

Extending from the stock 16 toward the front Wall is an arm 78, the free end of which is bifurcated, and pivotally mounted on a horizontal pin 7 9 between the branches formed by the said bifurcation, is an oscillating yoke 80. The yoke 8O is removably ysecured to the arm 78 by means of a suitable cotter pin 81. As shown in Figs. 2 and 6, vthe yoke 80 straddles the eccentric shaft 59 but is open the side adjacent the front wall of the reservoir. The yoke 80 is provided with an upwardly extending arm 82 which enters a slot 83 in the outer end of the plunger 39, the ends of the slot being tapered, as shown in Fig. 2, to reduce friction. The yoke 80 is also provided with a downwardly ext-ending arm 84 which coperates with a slot 85, similar to the slot 83, inthe outer end of the plunger 22. lVhile the slot 83 in the plunger 39 is of such length that the arm 82 constantly mperates with the ends of the slot to reciprocate the said plunger 39, all lost motion being eliminated, the slct of the plunger 22 is elongated so that Wit-hout moving the plunger when the latter is held against movement at the limit of its Ainward movement, so as to put the pump envided whereby the stroke of the plunger 22 may also be varied as desired. To this end a movable abutment is provided, and such abutment, in the present instance, takes the form of a screw 86 which is in threaded engagement with a suitable aperture in the front wall of the Leservoir, a packing gland '87 being provided to prevent leakage; and the screw 86 is inline with and may be moved. more or less into the path of theouter end of the plunger 22. l/Vhen this screw 86 is screwed inwardly to the limit of its movement it moves the plunger 22 to the end of its discharge stroke and the arm 84 then moves freely back and forth in the lslot without reacting against the ends of the slot and by adjusting the screw to intermediate po sitions the rate of delivery may be regulated as desired. The plunger 22' is moved on its discharge stroke by the arm 84, lout is returned or moved on its suction stroke/by a receive a crank 73, as shown in Fig. l. 'The' motion may be communicated from a suit-f the arm S4 may oscillate freely in such slot tirely out of operation, and means are pronei/euse coiled expansion spring 88 which surrounds the pump barrei 2l and reacis 'hetn'een the stock 16 and a collar 89 xed on vthe plunger 22.

The operation of the device Will be readily understood. Motion being imparcd io the eccentric shaft 59, through the medium of the driving Worm T4, turning the same ronjLinuously in one direction, the yoke Si) oiv each set of pumps will he oscillated thereby reciprocating the plungers and 39, it heing obvious that by reason of the arrangement shown the said plungers will be simultaneously reciprocaied in opposite directions. Un the suction stroke of the plunger 22 oil is drawn up from the reservoir through the passage 23 past the valve 2G and into the barrel 2l. On the discharge stroke of the plunger 22 the oii is forced from the barrel 2l, the valve 2G seating itsei over lihe passage 23, out the port Q8 into the passage 29 and after this passage has become icull the oil discharges in drops from the beni end 31 of Jche tube 30 into the pocket 32, and on the suction stroke of the plunger 38 oil is drawn in fromthe aocliet 32, ast the valve and enfers the barrel 38 through the channel ei-Q. As the barrel'SS is of greater capacity vthan the barrel 2i, on the suction stroke of ihe plunger 39, air is drawn in through the air port 58 and enters with the oil past the valve 35 into the pump barrel 38'. On the neXtsuction stroke of the plunger 22 the plunger moving on its inward or discharging stroke forces the oil out the port 43, past the yalve 45, through the duct 47 and into he passage Q0 from which it passes to the bearing or other part to be lubricaed, By reason of the lcharge or" air which is drawn in by the auxiliary pump and cempressed against theresistance of the valve 45, the oil is forced under the pressure of such compressed'air lio tie beari'ing.

V'Thile thest'roke ohe plunger 39 of the y auxiliary pump is constaritythe stroke or the plunger 22 of tlie primary pump may i be adjusted, so that-'the quantity of oil fed to the auxiliar Y pump and consequently to the bearing, mayibe varied, and the rate oi" delivery of alle primary pump may `be determined by the-dropping oi thejoil from the tube 3l intoihe pocket 32.

The paWl coperating with raichet teeth of the Worm. wheel 69 is so disposed that When motion is communicated to the Worm 74 by mechanism running in a forward direction the said pand Will turn the disk 63 and drive the eccentric shaft to op erate the pumps. By means of this paul and ratchet connection, however, the eccentric shaft 59 may be turned independently of the Worin gear 69 and its drivin@I connection 74;, for by turning the crank i573 at the end of the stud 70, the sha-ft may he turned Wit-hout affecting therivorm Wheel 69, as the paul 65 will merely run over he ratchet eeth 68. rhis arrangement permits of rho operation of the pump hy hand in order to give a preliminary lubrication to thc paris when he mechanism by which motion is coninnuiicided io the wheel T7, such as lie motor of an ailmnohilej is not"y running.

l have shown Jrho inyention in Fig'. l arranged for four of main and auxib iary pumps, but it is to be understood that only one such sci may e employed or any number desired. Then two or more pumps are employed adjustment of the stroke of the plunger 22 oi each may he effected independently of ihe other, in order to vary the quangity oii oil fed 'to diii'erent parts.

The apparaus may be readily disassembled for purpose of repair or cleaning, and to accomplis this it is only necessary afier disconnecting the discharge pipe of each pump, to unscreiv the nuts i9, ren'iove the screws 5G and the screwed?. T he cover may Jdien he lifted off, and 'rho cotter pins 8l having' been n-'ithdrawm flic yolres may be moved back in the bifurcai'ion of the arms 78 far enough io ciear lie eccentric shaft, when Jche stocks 16 with. their pumps and the yokes may he easily withdrawn through Jche iop of the reservoir.

Having described my invention what i claim and desire to secure by Letters Patent.

of the United States, is-

l. in a luhricator, an oil reservoir, a stock mounied therein, a primary pump, means to regulate Athe srolre of said pump, an auxil- 'ary pump for forcing to lhe part to be lubricated the oil discharged by the primary pump, and sight-feed through which the oilpasses from the primary to the auxiliary pump, said pumps and sighbliced heing carried by the stock.

2. in a lubricator, an oil reservoir, a stockn'iounted therein, a primary pump on i-ho stockpineansto regulate the sirolre or" thc said pump, sightiieed glass on the stock, a tube in 7the stock through which the oil passes from the pump to the sight-feed, and an auxiliary pump on the stock hy which the oil is vforced Jircm lie sighufeed to the pari; to he lubricatec.

l'n a iubricaor, an oil reservoir, a s'l'ocli mounted iherein, a primary pump, means to regulate the siroke of said pump, an auxiliai-y pump for forcing to the part fo he luhricaied the oil discharged by ihe primary pump, a sight-feed through. which ihc oil p= :ses from the primary to ihe aiiiniliary pump, and means 43o operate the pumps. said o-peraing-mcans, pinnps and sighljfifeed being' carried by the stock.

The comhinaion with a hibricator coinprising an oil reservoir, a primary pump, an auxiiiary pump for forcing to the part to be lubricated the oil discharged by the primary pump, or? actuating means consisting of an oscillating yoke having arms coperating with the pump plungers to reciprocate the same simultaneously in opposite direo tions.

The combination with alubricator comprising an oil reservoir, a primary pump the plunger of which is provided with an elongated slot, and an auxiliary pump for forcing to the part to be lubricated the oil discharged by the primary pump and Whose plunger is also provided with a slot, a sight lceffl device through which the oil passes from the primary pump to the auxiliary pump, of actuating means consisting of a pivoted yoke having arms one of which enters the slot of each pump plunger, a spri moving the primary pump plunger outwardly, and an adjustable abutment located iu the path of the latter plunger.

3. .in a lubricator, the combination with a reservoir. of a pair of pumps of different capacities, means for reciprocating the pump plungers simultaneously in opposite fliiecii ,i1s. means for varying the rate of delivery ot' the pump of lesser capacity, and a connection through which the oil passes from the latter pump to the other pump, such connection having an air inlet.

7. In a lubr'cator, tlie combination with a reservoir, of a pair of cooperating pumps therein, an eccentric located in the reservoir,

-a yoke oscillated by the eccentric and havinff a pair of opposite arms coperating with the pump plungers, and an adjustable abutment to regulate the stroke or one of the pumps.

8. l'n a lubricator, the combination with a reservoir, of a pair of horizontally disposed ralved pumps therein7 an eccentric.7 a pivoted yoke oscillated by the eccentricl'and having oppositely extending arms coperating with the pump plungers, connection vthrough which the oil passes from one pump to the other, and means for Varying the rate of delivery ot one of the pumps.

In testimony whereof l alix my signature in presence of two witnesses.

JOHN l?. MGCANNA.

vWitnesses EmzAnn'riii MOLETOR, J. lido/ROBERTS. 

